/* ==========================================================================
   ciao эстетика — стили сайта
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;1,400&family=Jost:wght@300;400;500;600&display=swap');

:root{
  --ink:#141210;
  --ink-soft:#454138;
  --cream:#f4f1ea;
  --cream-deep:#e9e3d6;
  --paper:#fbfaf6;
  --line:#d8d2c2;
  --accent:#8a7a55;
  --white:#ffffff;

  --font-display:'Cormorant Garamond', Georgia, serif;
  --font-body:'Jost', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --container:1240px;
  --gap:24px;
  --radius:18px;
  --radius-sm:10px;
  /* единый интервал между секциями — половина этого значения идёт снизу
     предыдущего блока и половина сверху следующего */
  --section-gap:clamp(32px,5vw,48px);

  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--cream);
  color:var(--ink);
  font-family:var(--font-body);
  font-weight:400;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-family:var(--font-display);font-weight:500;letter-spacing:.01em;}
p{margin:0;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 clamp(20px,5vw,64px);}

.eyebrow{
  display:inline-block;
  font-family:var(--font-body);
  font-size:12px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:14px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:15px 34px;
  border-radius:999px;
  font-size:14px;
  letter-spacing:.06em;
  text-transform:uppercase;
  border:1px solid var(--ink);
  background:var(--ink);
  color:var(--paper);
  transition:background .35s var(--ease), color .35s var(--ease), border-color .35s var(--ease), transform .35s var(--ease);
}
.btn:hover{background:transparent;color:var(--ink);transform:translateY(-2px);}
.btn--ghost{background:transparent;color:var(--ink);}
.btn--ghost:hover{background:var(--ink);color:var(--paper);}
.btn--light{border-color:var(--paper);color:var(--paper);}
.btn--light:hover{background:var(--paper);color:var(--ink);}

/* reveal-on-scroll */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease), transform .9s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:22px 0;
  transition:background .4s var(--ease), padding .4s var(--ease), box-shadow .4s var(--ease);
}
.site-header.is-scrolled{
  padding:14px 0;
  background:rgba(244,241,234,.92);
  backdrop-filter:blur(10px);
  box-shadow:0 1px 0 var(--line);
}
.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:24px;}
.logo{display:inline-flex;align-items:center;}
.logo__img{
  height:30px;width:auto;display:block;
  /* сам SVG залит светлой заливкой — для тёмной версии (после скролла) просто
     полностью зачерняем через filter, не трогая исходный файл */
  filter:drop-shadow(0 1px 5px rgba(0,0,0,.45));
  transition:filter .35s var(--ease);
}
.is-scrolled .logo__img{filter:brightness(0) saturate(100%);}

.nav{display:flex;align-items:center;gap:40px;}
.nav__list{display:flex;gap:36px;}
.nav__link{
  font-size:14px;letter-spacing:.04em;color:var(--white);
  position:relative;padding:4px 0;
  text-shadow:0 1px 4px rgba(0,0,0,.45);
  transition:color .35s var(--ease),text-shadow .35s var(--ease);
}
.is-scrolled .nav__link{color:var(--ink);text-shadow:none;}
.nav__link::after{
  content:'';position:absolute;left:0;bottom:0;width:0;height:1px;background:currentColor;
  transition:width .35s var(--ease);
}
.nav__link:hover::after{width:100%;}

.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:50%;
  align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--white);
  mix-blend-mode:difference;
}
.is-scrolled .nav-toggle{border-color:var(--ink);mix-blend-mode:normal;}
.nav-toggle span{position:relative;width:18px;height:12px;}
.nav-toggle span::before,.nav-toggle span::after{
  content:'';position:absolute;left:0;right:0;height:1px;background:var(--white);
}
.is-scrolled .nav-toggle span::before,.is-scrolled .nav-toggle span::after{background:var(--ink);}
.nav-toggle span::before{top:0;}
.nav-toggle span::after{bottom:0;}

/* ==========================================================================
   Hero (video)
   ========================================================================== */
.hero{
  position:relative;
  height:100svh;
  min-height:560px;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
  background:var(--ink);
}
.hero__media{position:absolute;inset:0;}
.hero__video,.hero__poster{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
  object-position:center;
}
.hero__poster{z-index:1;}
.hero__video{z-index:2;background:transparent;}
.hero__video::-webkit-media-controls{display:none !important;}
.hero__scrim{
  position:absolute;inset:0;z-index:3;
  /* тёмная плашка сверху держит контраст меню независимо от того, что показывает
     видео в этот момент; в середине чуть отпускаем, внизу снова затемняем под текст */
  background:linear-gradient(180deg, rgba(20,18,16,.5) 0%, rgba(20,18,16,.08) 18%, rgba(20,18,16,.12) 45%, rgba(20,18,16,.74) 100%);
}
.hero__logo{
  /* фиксируем на экране (не на hero): лого остаётся ровно по центру экрана,
     пока пользователь пролистывает hero, блок приветствия и «О нас» — не
     съезжает никуда, только плавно уменьшается к своему же центру и тает */
  position:fixed;
  z-index:5;
  left:50%;
  top:50%;
  width:min(82vw,1200px);
  transform:translate(-50%,-50%) scale(var(--logo-scale,1));
  transform-origin:center center;
  opacity:var(--logo-op,1);
  mix-blend-mode:difference;
  pointer-events:none;
  will-change:transform,opacity;
}
@media (max-width:760px){
  .hero__logo{width:min(88vw,620px);}
}

/* ==========================================================================
   Welcome — приветственный текст под видео (не внутри hero, чтобы не спорить
   за место с большим фиксированным логотипом)
   ========================================================================== */
.welcome{
  /* z-index выше лого (5): текст должен всегда читаться поверх, лого —
     только полупрозрачный фон в промежутках вокруг него */
  position:relative;z-index:6;
  padding-top:min(16vw,180px);padding-bottom:calc(var(--section-gap) / 2);
}
.welcome__eyebrow{color:var(--accent);font-size:13px;}
.welcome__title{
  font-size:clamp(36px,6vw,66px);
  max-width:17em;
  line-height:1.14;
}
.welcome__text{
  margin-top:26px;max-width:560px;font-size:17px;line-height:1.75;color:var(--ink-soft);
}
.welcome__actions{margin-top:44px;display:flex;gap:16px;flex-wrap:wrap;}

.hero__scrolldown{
  position:absolute;right:24px;bottom:28px;z-index:4;
  display:flex;flex-direction:column;align-items:center;gap:10px;
  color:var(--paper);opacity:.8;font-size:11px;letter-spacing:.2em;text-transform:uppercase;
}
.hero__scrolldown i{width:1px;height:46px;background:currentColor;position:relative;overflow:hidden;}
.hero__scrolldown i::after{
  content:'';position:absolute;left:0;top:-100%;width:100%;height:100%;background:var(--accent);
  animation:scrolldown 2.2s ease-in-out infinite;
}
@keyframes scrolldown{0%{top:-100%;}60%{top:100%;}100%{top:100%;}}

/* ==========================================================================
   About
   ========================================================================== */
.about{position:relative;z-index:6;padding-top:calc(var(--section-gap) / 2);padding-bottom:calc(var(--section-gap) / 2);}
.about__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:start;}
.about__title{font-size:clamp(28px,3.6vw,44px);line-height:1.2;}
.about__lede{margin-top:26px;font-size:18px;color:var(--ink-soft);max-width:46ch;}
.about__body{margin-top:20px;color:var(--ink-soft);max-width:46ch;}
.about__cta{margin-top:34px;}

.stats{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.stat{
  border-top:1px solid var(--line);padding-top:18px;
}
.stat b{display:block;font-family:var(--font-display);font-size:34px;font-weight:500;}
.stat span{display:block;margin-top:6px;font-size:13px;color:var(--ink-soft);}

/* ==========================================================================
   Benefits
   ========================================================================== */
.benefits{position:relative;z-index:6;padding-top:calc(var(--section-gap) / 2);padding-bottom:calc(var(--section-gap) / 2);}
.section-head{max-width:640px;margin:0 auto 56px;text-align:center;}
.section-head h2{font-size:clamp(28px,3.6vw,42px);}
.section-head p{margin-top:16px;color:var(--ink-soft);font-size:16px;}

.benefit-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
}
.benefit{background:var(--paper);padding:38px 30px;transition:background .35s var(--ease);}
.benefit:hover{background:var(--white);}
.benefit__num{font-family:var(--font-display);font-size:15px;color:var(--accent);}
.benefit h3{margin-top:22px;font-size:21px;line-height:1.3;font-weight:500;}
.benefit p{margin-top:12px;font-size:14.5px;color:var(--ink-soft);}

/* ==========================================================================
   Projects (grid + full portfolio)
   ========================================================================== */
.projects{padding-bottom:calc(var(--section-gap) * 1.6);}
.projects--dark{
  background:var(--ink);color:var(--paper);
  padding:min(10vw,100px) clamp(24px,6vw,80px);
  margin-bottom:0;
}
.projects__inner{max-width:var(--container);margin:0 auto;}
.projects__eyebrow{color:var(--accent);}
.projects--dark h2{color:var(--paper);}
.projects__head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap;
}
.projects__head h2{font-size:clamp(28px,3.6vw,42px);}
.project-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);
}

/* карусель «Недавние проекты» — по 3 карточки на экран, дальше свайп/стрелки */
.carousel{position:relative;}
.carousel__track{
  display:grid;
  grid-auto-flow:column;
  grid-auto-columns:calc((100% - 2 * var(--gap)) / 3);
  gap:var(--gap);
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  scroll-behavior:smooth;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.carousel__track::-webkit-scrollbar{display:none;}
.carousel__track > .project-card{scroll-snap-align:start;}
.carousel__arrow{
  position:absolute;top:50%;transform:translateY(-50%);
  width:52px;height:52px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(251,250,246,.1);border:1px solid rgba(251,250,246,.35);color:var(--paper);
  transition:background .3s var(--ease);
  z-index:2;
}
.carousel__arrow:hover{background:rgba(251,250,246,.22);}
.carousel__arrow--prev{left:-20px;}
.carousel__arrow--next{right:-20px;}
.project-card{
  position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/5;
  background:var(--cream-deep);
}
.project-card__img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform .7s var(--ease);
}
.project-card:hover .project-card__img{transform:scale(1.06);}
.project-card__scrim{
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(20,18,16,0) 45%, rgba(20,18,16,.82) 100%);
}
.project-card__info{position:absolute;left:0;right:0;bottom:0;padding:22px;color:var(--paper);}
.project-card__tag{
  display:inline-block;font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cream-deep);opacity:.85;margin-bottom:8px;
}
.project-card__title{font-family:var(--font-display);font-size:22px;}
.projects__more{margin-top:48px;text-align:center;}
.project-card__hit{position:absolute;inset:0;z-index:2;}
.visually-hidden-gallery-item{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

/* portfolio index page grid can have more items visible */
.project-grid--full{grid-template-columns:repeat(3,1fr);}

/* ==========================================================================
   Services
   ========================================================================== */
.services{padding-top:calc(var(--section-gap) / 2);padding-bottom:calc(var(--section-gap) / 2);}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.service-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:40px 34px;display:flex;flex-direction:column;height:100%;
  transition:transform .4s var(--ease), box-shadow .4s var(--ease);
}
.service-card:hover{transform:translateY(-6px);box-shadow:0 26px 50px -30px rgba(20,18,16,.35);}
.service-card__price{font-size:13px;letter-spacing:.06em;color:var(--accent);text-transform:uppercase;}
.service-card__name{margin-top:14px;font-size:26px;}
.service-card__pitch{margin-top:14px;color:var(--ink-soft);font-size:15px;line-height:1.6;flex:1 0 auto;}
.service-card__block{margin-top:24px;padding-top:20px;border-top:1px solid var(--line);}
.service-card__block h4{
  font-family:var(--font-body);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);
  margin-bottom:12px;font-weight:500;
}
.service-card__block ul li{font-size:14.5px;padding:4px 0;color:var(--ink);}
.service-card .btn{margin-top:28px;width:100%;}

/* ==========================================================================
   CTA band
   ========================================================================== */
.cta-band{
  margin:0 clamp(20px,5vw,64px) clamp(20px,5vw,64px);
  border-radius:var(--radius);
  background:var(--ink);color:var(--paper);
  padding:min(6vw,56px) clamp(20px,5vw,48px);text-align:center;
}
.cta-band h2{font-size:clamp(28px,4.2vw,46px);max-width:16em;margin:0 auto;}
.cta-band p{margin-top:18px;color:var(--cream-deep);}
.cta-band .btn{margin-top:32px;background:transparent;border-color:var(--paper);color:var(--paper);}
.cta-band .btn:hover{background:var(--paper);border-color:var(--paper);color:var(--ink);}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{
  padding:70px clamp(20px,5vw,64px) 30px;
  background:linear-gradient(180deg, var(--cream) 0%, var(--cream-deep) 45%, #d6d6d1 100%);
  box-shadow:0 -1px 0 var(--line);
}
.site-footer > .footer-top,
.site-footer > .footer-bottom{
  max-width:var(--container);margin:0 auto;
}
.footer-top{
  display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;
  padding-bottom:40px;border-bottom:1px solid var(--line);
}
.footer-brand .logo__img{height:46px;filter:brightness(0) saturate(100%);}
.footer-brand p{margin-top:14px;max-width:34ch;color:var(--ink-soft);font-size:14.5px;}
.footer-cols{display:flex;gap:64px;flex-wrap:wrap;}
.footer-col h4{
  font-family:var(--font-body);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-soft);margin-bottom:16px;font-weight:500;
}
.footer-col li{padding:5px 0;font-size:14.5px;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;
  font-size:12.5px;color:var(--ink-soft);
}

/* ==========================================================================
   Lightbox / gallery
   ========================================================================== */
.lightbox{
  position:fixed;inset:0;z-index:1000;background:rgba(15,13,11,.96);
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity .35s var(--ease);
}
.lightbox.is-open{opacity:1;pointer-events:auto;}
.lightbox__frame{position:relative;width:min(92vw,1100px);max-height:88vh;}
.lightbox__img{width:100%;max-height:88vh;object-fit:contain;border-radius:6px;}
.lightbox__close,.lightbox__prev,.lightbox__next{
  position:absolute;display:flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:50%;background:rgba(244,241,234,.12);color:var(--paper);
  border:1px solid rgba(244,241,234,.3);transition:background .3s var(--ease);
}
.lightbox__close:hover,.lightbox__prev:hover,.lightbox__next:hover{background:rgba(244,241,234,.28);}
.lightbox__close{top:-58px;right:0;}
.lightbox__prev{left:-64px;top:50%;transform:translateY(-50%);}
.lightbox__next{right:-64px;top:50%;transform:translateY(-50%);}
.lightbox__count{
  position:absolute;bottom:-38px;left:0;right:0;text-align:center;color:var(--cream-deep);
  font-size:12.5px;letter-spacing:.08em;
}

/* mobile nav drawer */
.mobile-nav{
  position:fixed;inset:0;z-index:99;background:var(--cream);
  display:flex;flex-direction:column;justify-content:center;padding:24px;
  transform:translateY(-100%);transition:transform .5s var(--ease);
}
.mobile-nav.is-open{transform:translateY(0);}
.mobile-nav__list{display:flex;flex-direction:column;gap:8px;}
.mobile-nav__list a{
  font-family:var(--font-display);font-size:38px;padding:10px 0;border-bottom:1px solid var(--line);
}
.mobile-nav__meta{margin-top:40px;display:flex;gap:20px;font-size:14px;color:var(--ink-soft);}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width:1080px){
  .about__grid{grid-template-columns:1fr;gap:40px;}
  .stats{grid-template-columns:1fr 1fr;max-width:420px;}
  .benefit-grid{grid-template-columns:repeat(2,1fr);}
  .project-grid,.project-grid--full{grid-template-columns:repeat(2,1fr);}
  .service-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto;}
  .carousel__track{grid-auto-columns:calc((100% - var(--gap)) / 2);}
}

@media (max-width:760px){
  .nav,.nav-toggle{display:none;}
  .nav-toggle{display:flex;}
  .site-header .container{padding:0 20px;}
  .welcome__actions{flex-direction:column;align-items:flex-start;}
  .benefit-grid{grid-template-columns:1fr;}
  .project-grid,.project-grid--full{grid-template-columns:1fr;}
  .carousel__track{grid-auto-columns:88%;}
  .carousel__arrow{width:40px;height:40px;}
  .carousel__arrow--prev{left:4px;}
  .carousel__arrow--next{right:4px;}
  .projects__head{flex-direction:column;align-items:flex-start;}
  .footer-top{flex-direction:column;gap:32px;}
  .footer-cols{gap:40px;}
  .lightbox__prev,.lightbox__next{width:38px;height:38px;}
  .lightbox__prev{left:8px;}
  .lightbox__next{right:8px;}
  .lightbox__close{top:12px;right:12px;}
  .cta-band{margin:0 20px 20px;padding:56px 22px;}
}

@media (max-width:420px){
  .welcome__title{font-size:30px;}
  .stat b{font-size:28px;}
}

@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  .hero__scrolldown i::after{animation:none;}
}